1. To change your keyboard, long press on any text field, select "Input Type" and choose your desired keyboard.
2. There are many 3rd party camera apps. Also, the zoom feature must be in the stock app as well. Its generally in the form of a slider. Sometimes, you can also use your volume rocker to zoom in---zoom out... Give it a try.
3. Its just a phone... I am already bored of all phones. They are all the same... Why did you choose a phone with QVGA display? I am slightly disappointed. Screen is the most important part of the phone...